Services included:
Luggage: 20kg per person there, 20kg one person back, 40kg for the other (because of course you're going to buy things in Japan), 7kg carry on for all flights.
Seats: Seats together in economy on all flights. Window seat and middle seat on all flights.
Layover: Layover in Cairns both ways. About 3-4 hour layover, which gives time in case of delays. Jetstar is used on both flights, so easy transfer handling.